In September, U.S. State Department officials invited a foreign delegation to the Guantanamo Bay detention center to persuade the group to take detainee Tariq Ba Odah to their country. If they succeeded, the transfer would mark a small step toward realizing President Barack Obama’s goal of closing the prison before he leaves office.

The foreign officials told the administration they would first need to review Ba Odah’s medical records, according to U.S. officials with knowledge of the episode. The Yemeni has been on a hunger strike for seven years, dropping to 74 pounds from 148, and the foreign officials wanted to make sure they could care for him.

For the next six weeks, Pentagon officials declined to release the records, citing patient privacy concerns, according to the U.S. officials. The delegation, from a country administration officials declined to identify, canceled its visit. After the administration promised to deliver the records, the delegation traveled to Guantanamo and appeared set to take the prisoner off U.S. hands, the officials said. The Pentagon again withheld Ba Odah’s full medical file.

Today, nearly 14 years since he was placed in the prison and five years since he was cleared for release by U.S. military, intelligence and diplomatic officials, Ba Odah remains in Guantanamo.

In interviews with multiple current and former administration officials involved in the effort to close Guantanamo, Reuters found that the struggle over Ba Odah’s medical records was part of a pattern. Since Obama took office in 2009, these people said, Pentagon officials have been throwing up bureaucratic obstacles to thwart the president’s plan to close Guantanamo.